Physics Force & Laws Of Motion Level: Misc Level
A 300g baseball traveling at 30 m/s is truck by a bat in the direction from which it came at 40 m/s find the impulse of the force on the baseball.
Physics Force & Laws Of Motion Level: Misc Level
An object with a mass of 2 kg traveling with a velocity of 3 m/s collides head- on and elastically with a stationary object of mass 0.5 kg. The velocity of the 2 kg mass after the collision is?
Physics Force & Laws Of Motion Level: Misc Level
A 200 g ball hits a wall perpendicularly with a velocity of 30 m/s and rebounds back perpendicularly with a velocity of 20 m/s. If the collision last for 5 milliseconds. Find the average force exerted by the ball on the wall.
Physics Force & Laws Of Motion Level: Misc Level
The Artic Snow Train has a mass of 4.00 x 10 to the 5 th power kg and a top speed of 32.0 km/hr. Suppose such a train moving at top speed is hit from behind by another snow train with a mass of 1.60 x10 to the 5 th power kg and a speed of 45.0 km/hr in the same direction. what velocity of the two trains if they move off together after the collision?
Physics Force & Laws Of Motion Level: Misc Level
An English Mastiff with a mass of 155 kg jumps forward horizontally at a speed of 6.0 m/s into a boat floating at rest. After the jump, the boat and the dog move with a velocity of 2.2 m/s forward . Calculate the boat's mass.
Physics Force & Laws Of Motion Level: Misc Level
A kangaroo can sustain a speed of 56 km/hr.Suppose a kangaroo is sitting on a log that is floating in a lake.when the kangaroo is frightened, she jumps off the log with a velocity of 50 km/hr toward the bank of the lake,The log moves off with a velocity of 3.8 m/s away from the bank. If the mass of the log is 250 kg, what is the mass of the kangaroo?
Physics Force & Laws Of Motion Level: Misc Level
With an upward speed of 12.5 m/s, the elevators in Yokohama Landmark Tower in Japan are among the fastest in the world. Suppose a passenger with a mass of 70.0 kg enters one of these elevators. The elevator goes up, reaching full speed in 4.0 s. Calculate the net force that is applied to the passenger during the elevator's acceleration.
Physics Force & Laws Of Motion Level: Misc Level
The record for the smallest dog in the world belongs to a terrier who had a mass of only 113 g.Suppose this dog runs to the right with a speed of 2.00 m/s when it suddenly sees a mouse.The dog becomes scared and uses its paws to bring itself to rest in 0.80 s. what is the force required to stop the dog? what is the dog,s stopping distance?
Physics Force & Laws Of Motion Level: Misc Level
The momentum of the system after the push is:
Physics Force & Laws Of Motion Level: Misc Level
The momentum of the system before the push is:
The momentum of the system before a push is zero
Physics Force & Laws Of Motion Level: Misc Level
How do the sums of the momenta of the balls before and after collision compare?
Physics Force & Laws Of Motion Level: Misc Level
[Continued from problem 5908] How do the impulses received by both balls compare?
Physics Force & Laws Of Motion Level: Misc Level
How does the force that ball A exerts on ball B compare to the force that ball B exerts on ball A?
Physics Force & Laws Of Motion Level: Misc Level
Two objects are connected by a light string that passes over a frictionless pulley, as in Figure P5.26. Draw free-body dia-grams of both objects.If the incline is frictionless and if mI=2.00 kg m2=6.00 kg, and 0=55.0%, find (a) the ac- celerations of the objects, (b) the tension in the string, and (c) the speed of each object 2.00 s after being released from rest.
Physics Force & Laws Of Motion Level: Misc Level
Two blocks of mass 3.50 kg and 8.00kg are connected by a massless string that passes over a frictionless pulley (Fig.P5.68). The inclines are frictionless. Find (a) the magni-tude of the acceleration of each block and (b) the tension in the string.
